The direction of palmprint texture is complex, and there are three main lines: the "tiger's mouth" starting from thumb and forefinger wraps the whole thenar to wrist, which is the "lifeline"; A large line extending obliquely to the thenar from the same starting point or a separate starting point as the lifeline, namely "wisdom line"; From the root of the little finger, there is a big line that runs all the way to the root of the index finger, that is, the "emotional line". Everyone has these three lines, in addition, there are some auxiliary lines, and some people don't exist, such as the "healthy line" that starts near the thenar and extends obliquely to the root of the little finger.
The results of medical statistics show that the oval line (small island line) appears at the beginning or the first 1/2 part of the lifeline, which often indicates that the digestive system is weak and prone to peptic ulcer, chronic gastritis, dyspepsia or hepatobiliary diseases; If the emotional line reaches below the index finger (the standard is the middle line of the middle finger) and wisdom line reaches above the thenar (the standard is the middle line of the ring finger), it indicates that hypertension may occur; If there are many small stripes on the life line (some extend to wisdom line), it means neurasthenia or greater mental stress, sentimentality and tension. ...
Common hand types are dustpan type and bucket type. In addition, there is an unusual bow pattern with wavy texture. Hand prints are of great reference value for judging genetic diseases. In normal people, the occurrence rate of reverse dustpan pattern (dustpan mouth facing thumb side) is 5.6%, and in patients with congenital stupidity (idiot), about 2/3 of them are open palms (that is, horizontal palm, finger emotional line or wisdom line extend through the whole palm, some are combined with two lines, some are connected by branches), and the ring finger and little finger are reverse dustpan patterns; The occurrence rate of normal arch lines is 4.8%, while most patients with genetic diseases with chromosomal abnormalities pass through the palm of their hands, and their fingerprints have multiple arch lines, even 10 fingers are arch lines.
Therefore, people's fingerprints are really closely related to health and intelligence.